--- /dev/null
+/*
+ * Copyright © 2018 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef IRIS_DEFINES_H
+#define IRIS_DEFINES_H
+
+/**
+ * @file iris_defines.h
+ *
+ * Random hardware #defines that we're not using GENXML for.
+ */
+
+#define MI_PREDICATE (0xC << 23)
+# define MI_PREDICATE_LOADOP_KEEP (0 << 6)
+# define MI_PREDICATE_LOADOP_LOAD (2 << 6)
+# define MI_PREDICATE_LOADOP_LOADINV (3 << 6)
+# define MI_PREDICATE_COMBINEOP_SET (0 << 3)
+# define MI_PREDICATE_COMBINEOP_AND (1 << 3)
+# define MI_PREDICATE_COMBINEOP_OR (2 << 3)
+# define MI_PREDICATE_COMBINEOP_XOR (3 << 3)
+# define MI_PREDICATE_COMPAREOP_TRUE (0 << 0)
+# define MI_PREDICATE_COMPAREOP_FALSE (1 << 0)
+# define MI_PREDICATE_COMPAREOP_SRCS_EQUAL (2 << 0)
+# define MI_PREDICATE_COMPAREOP_DELTAS_EQUAL (3 << 0)
+
+/* Predicate registers */
+#define MI_PREDICATE_SRC0 0x2400
+#define MI_PREDICATE_SRC1 0x2408
+#define MI_PREDICATE_DATA 0x2410
+#define MI_PREDICATE_RESULT 0x2418
+#define MI_PREDICATE_RESULT_1 0x241C
+#define MI_PREDICATE_RESULT_2 0x2214
+
+/* The number of bits in our TIMESTAMP queries. */
+#define TIMESTAMP_BITS 36
+
+#endif
#include "pipe/p_context.h"
#include "pipe/p_screen.h"
#include "util/u_inlines.h"
-#include "util/u_format.h"
-#include "util/u_upload_mgr.h"
-#include "util/ralloc.h"
#include "iris_context.h"
+#include "iris_defines.h"
#include "iris_resource.h"
#include "iris_screen.h"
-#include "intel/compiler/brw_compiler.h"
+
+#define CS_GPR(n) (0x2600 + (n) * 8)
+
+#define MI_MATH (0x1a << 23)
+
+#define MI_ALU_LOAD 0x080
+#define MI_ALU_LOADINV 0x480
+#define MI_ALU_LOAD0 0x081
+#define MI_ALU_LOAD1 0x481
+#define MI_ALU_ADD 0x100
+#define MI_ALU_SUB 0x101
+#define MI_ALU_AND 0x102
+#define MI_ALU_OR 0x103
+#define MI_ALU_XOR 0x104
+#define MI_ALU_STORE 0x180
+#define MI_ALU_STOREINV 0x580
+
+#define MI_ALU_R0 0x00
+#define MI_ALU_R1 0x01
+#define MI_ALU_R2 0x02
+#define MI_ALU_R3 0x03
+#define MI_ALU_R4 0x04
+#define MI_ALU_SRCA 0x20
+#define MI_ALU_SRCB 0x21
+#define MI_ALU_ACCU 0x31
+#define MI_ALU_ZF 0x32
+#define MI_ALU_CF 0x33
+
+#define MI_ALU0(op) ((MI_ALU_##op << 20))
+#define MI_ALU1(op, x) ((MI_ALU_##op << 20) | (MI_ALU_##x << 10)
+#define MI_ALU2(op, x, y) \
+ ((MI_ALU_##op << 20) | (MI_ALU_##x << 10) | (MI_ALU_##y))
struct iris_query {
enum pipe_query_type type;
+
+ bool ready;
+
+ uint64_t result;
+
+ struct iris_bo *bo;
+ struct iris_query_snapshots *map;
+};
+
+struct iris_query_snapshots {
+ uint64_t start;
+ uint64_t end;
+ uint64_t snapshots_landed;
};
+/**
+ * Is this type of query written by PIPE_CONTROL?
+ */
+static bool
+iris_is_query_pipelined(struct iris_query *q)
+{
+ switch (q->type) {
+ case PIPE_QUERY_OCCLUSION_COUNTER:
+ case PIPE_QUERY_OCCLUSION_PREDICATE:
+ case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
+ case PIPE_QUERY_TIMESTAMP:
+ case PIPE_QUERY_TIMESTAMP_DISJOINT:
+ case PIPE_QUERY_TIME_ELAPSED:
+ return true;
+
+ default:
+ return false;
+ }
+}
+
+static void
+write_availability(struct iris_context *ice,
+ struct iris_query *q,
+ bool available)
+{
+ struct iris_batch *batch = &ice->render_batch;
+ unsigned flags = PIPE_CONTROL_WRITE_IMMEDIATE;
+ unsigned offset = offsetof(struct iris_query_snapshots, snapshots_landed);
+
+ if (!iris_is_query_pipelined(q)) {
+ ice->vtbl.store_data_imm64(batch, q->bo, offset, available);
+ } else {
+ if (available) {
+ /* Order available *after* the query results. */
+ flags |= PIPE_CONTROL_FLUSH_ENABLE;
+ } else {
+ /* Make it unavailable *before* any pipelined reads. */
+ flags |= PIPE_CONTROL_CS_STALL;
+ }
+ iris_emit_pipe_control_write(batch, flags, q->bo, offset, available);
+ }
+}
+
+/**
+ * Write PS_DEPTH_COUNT to q->(dest) via a PIPE_CONTROL.
+ */
+static void
+iris_pipelined_write(struct iris_batch *batch,
+ struct iris_query *q,
+ enum pipe_control_flags flags,
+ unsigned offset)
+{
+ const struct gen_device_info *devinfo = &batch->screen->devinfo;
+ const unsigned optional_cs_stall =
+ devinfo->gen == 9 && devinfo->gt == 4 ? PIPE_CONTROL_CS_STALL : 0;
+
+ iris_emit_pipe_control_write(batch, flags | optional_cs_stall,
+ q->bo, offset, 0ull);
+}
+
+static void
+write_value(struct iris_context *ice, struct iris_query *q, unsigned offset)
+{
+ iris_use_pinned_bo(&ice->render_batch, q->bo, true);
+
+ switch (q->type) {
+ case PIPE_QUERY_OCCLUSION_COUNTER:
+ case PIPE_QUERY_OCCLUSION_PREDICATE:
+ case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
+ iris_pipelined_write(&ice->render_batch, q,
+ PIPE_CONTROL_WRITE_DEPTH_COUNT |
+ PIPE_CONTROL_DEPTH_STALL,
+ offset);
+ case PIPE_QUERY_TIME_ELAPSED:
+ iris_pipelined_write(&ice->render_batch, q,
+ PIPE_CONTROL_WRITE_TIMESTAMP,
+ offset);
+ break;
+ default:
+ assert(false);
+ }
+}
+
+static void
+calculate_result_on_cpu(struct iris_query *q)
+{
+ switch (q->type) {
+ case PIPE_QUERY_OCCLUSION_PREDICATE:
+ case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
+ q->result = q->map->end != q->map->start;
+ break;
+ case PIPE_QUERY_OCCLUSION_COUNTER:
+ case PIPE_QUERY_TIME_ELAPSED:
+ case PIPE_QUERY_PRIMITIVES_GENERATED:
+ case PIPE_QUERY_PRIMITIVES_EMITTED:
+ default:
+ q->result = q->map->end - q->map->start;
+ break;
+ }
+
+ q->ready = true;
+}
+
+/**
+ * Calculate the result and store it to CS_GPR0.
+ */
+static void
+calculate_result_on_gpu(struct iris_context *ice, struct iris_query *q)
+{
+ struct iris_batch *batch = &ice->render_batch;
+
+ ice->vtbl.load_register_mem64(batch, CS_GPR(1), q->bo,
+ offsetof(struct iris_query_snapshots, start));
+ ice->vtbl.load_register_mem64(batch, CS_GPR(2), q->bo,
+ offsetof(struct iris_query_snapshots, end));
+
+ static const uint32_t math[] = {
+ MI_MATH | (5 - 2),
+ MI_ALU2(LOAD, SRCA, R2),
+ MI_ALU2(LOAD, SRCB, R1),
+ MI_ALU0(SUB),
+ MI_ALU2(STORE, R0, ACCU),
+ };
+ iris_batch_emit(batch, math, sizeof(math));
+}
+
static struct pipe_query *
iris_create_query(struct pipe_context *ctx,
unsigned query_type,
unsigned index)
{
- struct iris_query *query = calloc(1, sizeof(struct iris_query));
+ struct iris_query *q = calloc(1, sizeof(struct iris_query));
- query->type = query_type;
+ q->type = query_type;
- return (struct pipe_query *) query;
+ return (struct pipe_query *) q;
}
static void
iris_destroy_query(struct pipe_context *ctx, struct pipe_query *p_query)
{
struct iris_query *query = (void *) p_query;
+ iris_bo_unreference(query->bo);
free(query);
}
+
static boolean
iris_begin_query(struct pipe_context *ctx, struct pipe_query *query)
{
+ struct iris_screen *screen = (void *) ctx->screen;
+ struct iris_context *ice = (void *) ctx;
+ struct iris_query *q = (void *) query;
+
+ iris_bo_unreference(q->bo);
+ q->bo = iris_bo_alloc(screen->bufmgr, "query object", 4096,
+ IRIS_MEMZONE_OTHER);
+ if (!q->bo)
+ return false;
+
+ q->map = iris_bo_map(&ice->dbg, q->bo, MAP_READ | MAP_ASYNC);
+ if (!q->map)
+ return false;
+
+ q->result = 0ull;
+ q->ready = false;
+
+ write_availability(ice, q, false);
+ write_value(ice, q, offsetof(struct iris_query_snapshots, start));
+
return true;
}
static bool
iris_end_query(struct pipe_context *ctx, struct pipe_query *query)
{
+ struct iris_context *ice = (void *) ctx;
+ struct iris_query *q = (void *) query;
+
+ write_value(ice, q, offsetof(struct iris_query_snapshots, end));
+ write_availability(ice, q, true);
+
return true;
}
iris_get_query_result(struct pipe_context *ctx,
struct pipe_query *query,
boolean wait,
- union pipe_query_result *vresult)
+ union pipe_query_result *result)
{
- uint64_t *result = (uint64_t*)vresult;
+ struct iris_context *ice = (void *) ctx;
+ struct iris_query *q = (void *) query;
+
+ if (!q->ready) {
+ if (iris_batch_references(&ice->render_batch, q->bo))
+ iris_batch_flush(&ice->render_batch);
+
+ if (!q->map->snapshots_landed) {
+ if (wait)
+ iris_bo_wait_rendering(q->bo);
+ else
+ return false;
+ }
+
+ assert(q->map->snapshots_landed);
+ calculate_result_on_cpu(q);
+ }
+
+ assert(q->ready);
+ result->u64 = q->result;
+
+ return true;
+}
+
+static void
+iris_get_query_result_resource(struct pipe_context *ctx,
+ struct pipe_query *query,
+ boolean wait,
+ enum pipe_query_value_type result_type,
+ int index,
+ struct pipe_resource *p_res,
+ unsigned offset)
+{
+ struct iris_context *ice = (void *) ctx;
+ struct iris_query *q = (void *) query;
+ struct iris_batch *batch = &ice->render_batch;
+
+ if (!q->ready && q->map->snapshots_landed) {
+ /* The final snapshots happen to have landed, so let's just compute
+ * the result on the CPU now...
+ */
+ calculate_result_on_cpu(q);
+ }
+
+ if (q->ready) {
+ /* We happen to have the result on the CPU, so just copy it. */
+ if (result_type <= PIPE_QUERY_TYPE_U32) {
+ ice->vtbl.store_data_imm32(batch, iris_resource_bo(p_res), offset,
+ q->result);
+ } else {
+ ice->vtbl.store_data_imm64(batch, iris_resource_bo(p_res), offset,
+ q->result);
+ }
+ return;
+ }
+
+ /* Calculate the result to CS_GPR0 */
+ calculate_result_on_gpu(ice, q);
+
+ bool predicated = !wait && iris_is_query_pipelined(q);
+
+ if (predicated) {
+ ice->vtbl.load_register_imm64(batch, MI_PREDICATE_SRC1, 0ull);
+ ice->vtbl.load_register_mem64(batch, MI_PREDICATE_SRC0, q->bo,
+ offsetof(struct iris_query_snapshots,
+ snapshots_landed));
+ uint32_t predicate = MI_PREDICATE |
+ MI_PREDICATE_LOADOP_LOADINV |
+ MI_PREDICATE_COMBINEOP_SET |
+ MI_PREDICATE_COMPAREOP_SRCS_EQUAL;
+ iris_batch_emit(batch, &predicate, sizeof(uint32_t));
+ }
- *result = 0;
- return TRUE;
+ if (result_type <= PIPE_QUERY_TYPE_U32) {
+ ice->vtbl.store_register_mem32(batch, CS_GPR(0),
+ iris_resource_bo(p_res),
+ offset, predicated);
+ } else {
+ ice->vtbl.store_register_mem64(batch, CS_GPR(0),
+ iris_resource_bo(p_res),
+ offset, predicated);
+ }
}
static void
iris_set_active_query_state(struct pipe_context *pipe, boolean enable)
{
+ /* Do nothing, intentionally - only u_blitter uses this. */
}
void
ctx->begin_query = iris_begin_query;
ctx->end_query = iris_end_query;
ctx->get_query_result = iris_get_query_result;
+ ctx->get_query_result_resource = iris_get_query_result_resource;
ctx->set_active_query_state = iris_set_active_query_state;
}
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